Home / 885,786.30-1,328,679.45-254,663.10

Finding the Fourth Proportional to 885,786.30, 1,328,679.45 and 254,663.10

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Solution

The fourth proportional to 885,786.30, 1,328,679.45 and 254,663.10 is: 381,994.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,786.30 : 1,328,679.45 = 254,663.10 : x
  2. Step 2: Convert to fraction form
    885,786.30/1,328,679.45 = 254,663.10/x
  3. Step 3: Cross multiply
    885,786.30x = 1,328,679.45 × 254,663.10
  4. Step 4: Simplify right side
    885,786.30x = 338,365,627,643.30
  5. Step 5: Solve for x
    x = 338,365,627,643.30/885,786.30
  6. Step 6: Final answer
    x = 381,994.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.